Standard Deviation and Variance

great explantion 👏🏻

Well explained🤝🏻

You have not only explained the Standard Deviation calculation in an easier manner with an example but also answered the common questions about Arithmetic mean and Quadratic mean. Thank you for the great video.

thank you

I understood everything except one point
Why in calculating the standard deviation of a sample we divide the mean be n minus one
I mean this make it more accurate to represent the population ? why not just divide it by n alone ? Why exactly minus one ? Not minus 2 or plus one for example?

Excellent

Amazing video thank you for sharing this information.

Literally was lost, mainly because my professor goes fast and I cant catch up with what he says but holy am I grateful for this video. I understand most but this just help clarified what I am learning by a significant amount!! <3

Thank you very nicely explained.

Great video thanks

The best explanation of standard deviation ever. For the first time, I have a full understanding of SD. Thank you so much

is there a relationship (or a rule of thumb) of how big the sample size "n" should be at minimum to be confident that it wont change the standard deviation much for bigger sample sizes?

excellent explanation

Very well explained ❤

One of the best videos on SD & Variance, thanks a ton for keeping things simple.

thank you!

U r the best i finally found someone who can explain this clearly with examples

If I pull a card to try for the ace of spades (1/52 chance) and I win $500 each time I do, and $0 all the other times, how do I calculate the variance? each pull would be 1/52 (not 1/52 then 1/51 then 1/50...)

Is datatab free to use?

😊nice

Vielen Dank für eure tollen Videos!
Ihr erklärt das Thema Statistik sehr verständlich und auf eine angenehme Weise.
Könntet ihr (ähnlich wie zur Standardabweichung) auch ein Video zum Standardfehler des Mittelwertes machen?

Just love it, thanks!

Die Stimme ist unangenehm anzuhören. Der Inhalt ist wirklich nützlich. Gerne mehr :)
Gerne bei zukünftigen Videos nicht so überheftig betonen und auch die Sprachmodulation etwas reduzieren.
So hatte ich das Gefühl, dass die Stimme glaubt, dass ich ein Vollidiot bin, der die Sprache nicht spricht.

Excellent.